Our wide range of industrial-grade PC/104 and PC/104-Plus serial cards is a popular choice for embedded applications requiring connections to multiple serial devices with high data throughput.

PC/104-Plus bus, 4-port RS-232/422/485 module, -40 to 85°C operating temperature

Serial interface
Comm. Controller
– 16C550C or compatible x 4
Bus
– PC/104-Plus bus
Connector
– 40-pin header
DIP switch
– Serial interface
IRQ
– Assigned by BIOS
I/O address
– Assigned by BIOS
FIFO
– 128 bytes
Max. Number of cards per PC
– 8
Number of ports
– 4
Serial standards
– RS-232, RS-422, RS-485
Baud rate
– 50 bps to 921.6 kbps
Data bits
– 5, 6, 7, 8
Stop bits
– 1, 1.5, 2
Parity
– None, Even, Odd, Space, Mark
Flow control
– None, RTS/CTS, XON/XOFF

Serial signals
RS-232
– TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
RS-422
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
– Data+, Data-, GND

Serial software functions
Windows driver
– DOS, Windows 95/98/ME/NT/2000, Windows XP/2003/Vista/2008/7/8/8.1/10 (x86/x64), Windows 2008 R2/2012/2012 R2/2016/2019 (x64), Windows Embedded CE 5.0/6.0, Windows XP Embedded
Linux drivers
– Linux kernel 2.4.x, Linux kernel 2.6.x, Linux kernel 3.x
UNIX driver
– QNX 6, Solaris 10, UnixWare 7

Performance parameters
Input current
– 164 mA @ 5 VDC
Input voltage
– 5 VDC

Physical properties
Dimensions
– 90 x 96 mm (3.54 x 3.78 in)

LED interface
LED indicators
– Built-in Tx, Rx LEDs for each port

Environmental conditions
Operating temperature
– -40 to 85°C (-40 to 185°F)
Storage temperature (in packaging)
– -40 to 85°C (-40 to 185°F)
Relative humidity
– 5 to 95% (non-condensing)

Standards and certifications
EMC
– EN 55032/24
EMI
– CISPR 32, FCC Part 15B Class A
EMS
– IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
– IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
– IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV
– IEC 61000-4-5 Surge: Power: 0.5 kV
– IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m
– IEC 61000-4-8 PFMF
Environmental tests
– IEC 60068-2-1
– IEC 60068-2-2
– IEC 60068-2-3
– IEC 60068-2-14
Vibration
– IEC 60068-2-6

Declaration
Environmentally friendly product
– RoHS, CRoHS, WEEE

MTBF
Time
– 381.081 hours
Standards
– Telcordia (Bellcore), GB